Hydraulic fluid power. Interpolation method for particle count and filter test data
Hydraulic fluid power. Interpolation method for particle count and filter test data
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What is PD ISO/TR 4808 about?
PD ISO/TR 4808 is a document on hydraulic fluid power. PD ISO/TR 4808 describes a method for the interpolation of particle concentration and filter Beta Ratio data when results are not otherwise available at the desired particle sizes. PD ISO/TR 4808 is applicable for assessing conformance with existing fluid cleanliness and filter Beta Ratio specifications whereby the specification and actual test results are provided in different units of particle size, for example, the specification is in μm(c), but the particle counts, or Beta Ratio data are in units of μm(b). PD ISO/TR 4808
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